You wish to test the following claim (H.) at a significance level of a = 0.02.H.:µ = 71.8Ha:u > 71.8You believe the population is normally distributed, but you do not know the standard deviation. You obtaina sample of size n = 19 with mean I = 89.2 and a standard deviation of s = 17.6.What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value =The p-value is...O less than (or equal to) aO greater than aThis p-value leads to a decision to...O reject the nullO accept the nullO do not reject the nullAs such, the final conclusion is that...O There is sufficient evidence to warrant rejection of the claim that the population mean is greaterthan 71.8.O There is not sufficient evidence to warrant rejection of the claim that the population mean is greaterthan 71.8.O The sample data support the claim that the population mean is greater than 71.8.O There is not sufficient sample evidence to súpport the claim that the population mean is greater than71.8.Question Help: VideoSubmit Question

Given data : sample size, n =19 sample mean, x̄ = 89.2 sample standard…

Answered: You believe the population is normally…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=44.7. You would like to be 90% confident that your estimate is within 0.2 of the true population mean. How large of a sample size is required?n =
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=74.5σ=74.5. You would like to be 90% confident that your estimate is within 2 of the true population mean. How large of a sample size is required?n =
Look at this histogram of heights from the GSS, which happens to be a case where a variable is relatively close to Normally-distributed (Normal curve laid atop for reference). Although it is tough to “eyeball” standard deviations, I am going to give you a list of values that could possibly describe one standard deviation of this distribution. Only one is even in the “ballpark”. Please select it based on your knowledge of Normal distributions. a. One inch b. Four inches c. 20 inches d. 50 inches
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You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=74.5σ=74.5. You would like to be 98% confident that your estimate is within 2.5 of the true population mean. How large of a sample size is required?n =
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I just need help with parts B & D
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Q1.2 Standard Deviation of Sampling Distribution of x-bar Suppose the distribution of cholesterol levels in a population of men is approximately normally distributed with a mean of 200 mg/dL and a standard deviation of 32 mg/dL. What is the standard deviation of the sampling distribution of for n=25? Write your answer as a decimal value rounded to four decimal places. (Don't put any text or supporting work! Just the numeric value.)
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